Hand-glasses combined with a dark chamber.



' A. STADELMANN.

HAND GLASSES COMBINED WITH A DARK CHAMBER.

APPLICATION FILED MAR. 12, 1913.

1,098, 1 86. Patented May 26, 1914.

In \re nto r B M4 v/@U/WWM instrument when not in use.

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ADOLPHE STAIDELMANN, OF PARIS, FRANCE, A SSIGN OR TO SOCIETE AD. & ED.DERAISME, OF PAR-IS, FRANCE, A CORPORATION OF FRANCE.

HAND-GLASSES COMBINED WITH A DAR-K CHAMBER.

Specification of Letters latent.

Patented May 26, 1914.

Application filed March 12, 1918. Serial No. 753,813.

Oombined with a Dark Chamber, of which the following is a specification.

This invention relates to 'lorgnettes and to improved means for mountingthe objec tives and eye pieces. Each eye piece and each objective isprovided with an arm, the arms converging at a common point, and meansare provided for varying the relation of the arms with reference to eachother, thereby varying the distance between the corresponding lenses.

In the accompanying drawing forming part of this application, Figure lis a view or" the device in elevation. Fig. 2 is a view also inelevation but from a different angle, and Fig. 3 is a view in elevation,showing the device closed.

The eye pieces and objectives of the two instruments are indicatedrespectively by l and 2, these lenses being connected by opaquecollapsible devices, A plurality of arms 3 are connected with theinstruments by being secured to the mounting means for each lens. Thesearms converge and are connected by means of a screw 5 to any suitablemember i. A sliding member 6 is carried by the several arms, andconstitutes means for varying their position with reference to eachother, and for closing the This sliding member (5' may be of rectangularformation, one of the arms being disposed in each corner oftherectangle. The side bars of this member areindicated by 7, and stopmembers carried by the arms, for limiting the movement of member 6, aredesignated by the numeral 8.

It will be understood that in the use of the device the sliding member 6is placed in such position on arms 3 as circumstances may require inorder to place the lenses in proper relation with each other.

What I claim is:

1. In a device of the class described, a plurality of opticalinstruments, a separate arm connected with each end of each instrument,said arms converging at their outer ends, and means for varying thedistance between the arms.

2. In a device of the class described, a plurality of opticalinstruments, a separate arm connected at one end of each instrument,said arms converging at their outer ends, and slidable means for varyingthe distance between the arms.

3. In a device of the class described, a

plurality of optical instruments, an arm connected with each end of eachinstrument, the arms converging to a given point, and slidable means forvarying the distance be tween the arms.

l. In a device of the class described, a plurality of opticalinstruments, each com- )rising a plurality of lenses, the lenses beingmovable toward and away from each other, a plurality of arms convergingto a given point, means for connecting each arm with a lens, and meansfor varying the position of the arms with reference to each other andfor holding the arms .in an adjusted position, said means last mentionedcomprising a band surrounding the arms.

5. In a device of the class described, aplurality of opticalinstruments, each comprising a plurality of lenses, the lenses beingmovable toward and away from each other, plurality of arms converging toa given point, means for connecting the arms with the lenses, slidablemeans for varying the position of the arms with reference to each otherand stop members on the arms for limiting the movable means.

In testimony whereof I ailiX my signature in presence of two witnesses.

ADOLPHE STADELMANN.

Witnesses JULns BELE, LUoInN MEMMINGER.

Gopies of this patent may'be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

